#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>

// 假设的硬件接口函数（通常在硬件抽象层中实现）
void initLED() {
    // 初始化LED硬件
    printf("LED initialized.\n");
}

void setLEDState(bool state) {
    // 设置LED状态
    if (state) {
        printf("LED turned ON.\n");
    } else {
        printf("LED turned OFF.\n");
    }
}

void initSensor() {
    // 初始化传感器硬件
    printf("Sensor initialized.\n");
}

int readSensor() {
    // 读取传感器数据
    return 42; // 返回模拟的传感器数据
}

void initBuzzer() {
    // 初始化蜂鸣器硬件
    printf("Buzzer initialized.\n");
}

void soundBuzzer(bool sound) {
    // 控制蜂鸣器发声
    if (sound) {
        printf("Buzzer ON.\n");
    } else {
        printf("Buzzer OFF.\n");
    }
}

// LED控制结构体和函数
typedef struct _LEDControl {
    void (*init)();
    void (*setState)(bool);
} LEDControl;

void LEDControlInit() {
    initLED();
}

void LEDControlSetState(bool state) {
    setLEDState(state);
}

// 传感器控制结构体和函数
typedef struct _SensorControl {
    void (*init)();
    int (*read)();
} SensorControl;

void SensorControlInit() {
    initSensor();
}

int SensorControlRead() {
    return readSensor();
}

// 蜂鸣器控制结构体和函数
typedef struct _BuzzerControl {
    void (*init)();
    void (*sound)(bool);
} BuzzerControl;

void BuzzerControlInit() {
    initBuzzer();
}

void BuzzerControlSound(bool sound) {
    soundBuzzer(sound);
}

// 外观模式结构体
typedef struct _SystemFacade {
    LEDControl ledControl;
    SensorControl sensorControl;
    BuzzerControl buzzerControl;
    void (*operate)(struct _SystemFacade*);
} SystemFacade;

void operateSystem(SystemFacade* facade) {
    assert(NULL != facade);
    
    // 初始化各个模块
    facade->ledControl.init();
    facade->sensorControl.init();
    facade->buzzerControl.init();
    
    // 执行操作
    facade->ledControl.setState(true);
    int sensorValue = facade->sensorControl.read();
    printf("Sensor value: %d\n", sensorValue);
    facade->buzzerControl.sound(true);
}

// 主函数
int main() {
    // 创建系统外观实例
    SystemFacade systemFacade = {
        .ledControl = { LEDControlInit, LEDControlSetState },
        .sensorControl = { SensorControlInit, SensorControlRead },
        .buzzerControl = { BuzzerControlInit, BuzzerControlSound },
        .operate = operateSystem
    };

    // 使用系统外观来操作各个模块
    systemFacade.operate(&systemFacade);

    return 0;
}

